Parasitoid Density
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Do parasitoid density and host age affect the parasitism of Palmistichus elaeisis (Hymenoptera: Eulophidae)?
RESUMO: A incidência de lepidópteros desfolhadores é um dos fatores ambientais que regulam a produtividade das florestas plantadas. O endoparasitoide Palmistichus elaeisis (Hymenoptera: Eulophidae) destaca-se pela eficiência no parasitismo e pode ser promissor no controle de Lepidoptera pragas em diversas culturas com importância econômica. Assim, aval
Arq. Inst. Biol.. Publicado em: 30/05/2019
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2. Influence of host preference, mating, and release density on the parasitism of Telenomus remus (Nixon) (Hymenoptera, Platygastridae)
ABSTRACT We evaluated the influence of host preference, mating, and release density on Telenomus remus (Nixon, 1937) (Hymenoptera: Platygastridae) parasitizing eggs of Spodoptera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae). First, we tested host preference of T. remus (free choice test) offered a choice between eggs of Corcyra cephalonica (Stainton, 18
Rev. Bras. entomol.. Publicado em: 2017-01
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3. Euschistus heros mass rearing technique for the multiplication of Telenomus podisi.
The objective of this work was to improve the mass rearing technique of Euschistus heros in laboratory. Nymphs and adults were reared at densities 100, 200, 300 and 400 eggs per Petri dish (9 cm diameter), and at 50, 100, 150 and 200 couples per rearing cages (900 mL), respectively. Survival rate of immature stages and survivorship and reproduction of adults
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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4. Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn.
Parasitism by Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) on Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) and consequent reduction of production losses were evaluated on caged corn plants in the field. Treatments consisted of plots infested with 0 (control), 15 and 30 pairs of C. flavicincta with egg masses per cage and plot infes
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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5. Effect of Telenomus remus Nixon (Hymenoptera:scelionidae) density on control of Spodoptera frugiperda (Smith) (Lepidoptera: noctuidae) egg masses upon release in a maize field.
The impact of releasing different densities (0, 6, 9 and 12 adult females m-2) of the egg parasitoid Telenomus remus Nixon on maize plants artificially infested with Spodoptera frugiperda (Smith) egg masses (one m-2) was evaluated. Egg masses were pinned in the mid-rib of the plant 36 days after planting. One egg mass contained approximately 65 eggs. The exp
Revista Brasileira de Milho e Sorgo. Publicado em: 2011
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6. Otimização da criação de Anagasta kuehniella (Zeller, 1879), hospedeiro alternativo de Trichogramma sppa., baseando-se na temperatura, densidade larval e concentração de dióxido de carbono / Optimization of the rearing of Anagasta kuehniella (Zeller, 1879), factitious host for Trichogramma spp., based on temperature, larval density and carbon dioxide concentration
O objetivo do trabalho foi estabelecer as condições ótimas para criação massal de Anagasta kuehniella (Zeller, 1879), definindo a densidade larval por recipiente de criação, associando-a com temperatura e concentração de CO2, produzidos pelo metabolismo larval. Para que este objetivo fosse atingido, foram avaliados: 1) o efeito da temperatura no cic
Publicado em: 2011
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7. Parasitóide de pupas Trichospilus diatraeae (Hymenoptera: Eulophidae): desenvolvimento e reprodução em lepidópteros-praga do dendezeiro / Parasitoid pupae Trichospilus diatraeae (Hymenoptera: Eulophidae): Development and reproduction in defoliating caterpillars of oil palm
The African palm or oil palm (Elaeis guineensis Jacq.) is a plant of African origin and considered the major industrialized activity in humid areas, similar in Amazon area. The expansion of oil palm, especially in northern region of Brazil, has presented more phytosanitary problems, including the caterpillars defoliating Brassolis sophorae L. Opsiphanes invi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/07/2010
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8. Sistema hospedeiro-parasitoide associado à Piper glabratum Künth e P. mollicomum Künth (Piperaceae) no município de São Carlos, SP
This work presents biology and ecology data of host parasitoid insects associated with two plant species of the genus Piper L. (Piperaceae) ‐ P. glabratum and P. mollicomum. The phytophagous species studied belong to the order Lepidoptera and their parasitoids to the Hymenoptera and Diptera. The samples were carried out by entomological umbrella; the c
Publicado em: 2009
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9. BIOLOGIA E TÉCNICAS DE CRIAÇÃO DE Trichospilus diatraeae (HYMENOPTERA: EULOPHIDAE) EM PUPAS DE Tenebrio molitor (COLEOPTERA: TENEBRIONIDAE) E Diatraea saccharalis (LEPIDOPTERA: CRAMBIDAE)
The potential for Trichospilus diatraeae Cherian &Margabandhu, 1942 (Hymenoptera:Eulophidae) as biological control agent in Brazil is unknown and, therefore, this research assessed the feasibility of pupae of Tenebrio molitor Linnaeus, 1758 (Coleoptera:Tenebrionidae) as host alternative, to optimize its production in the laboratory for the control of Diatrae
Publicado em: 2009
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10. Ocorrência e bionomia de Ctenarytaina eucalypti (Maskell) (Hemiptera: Psyllidae) e seu inimigo natural Psyllaephagus pilosus Noyes (Hymenoptera: Encyrtidae) em plantas de Eucalyptus globulus / Occurrence and bionomy of Ctenarytaina eucalypti (Maskell) (Hemiptera: Psyllidae) and its natural enemy Psyllaephagus pilosus Noyes (Hymenoptera: Encyrtidae) in plants of Eucalyptus globulus.
Species of the genus Eucalyptus hosting several species of insects of the family Psyllidae. Among them, the specie Ctenarytaina eucalypti (Maskell) (Hemiptera: Psyllidae) is considered the most harmful, causing damage to culture wherever it has been introduced. To control these hemiptera phytophage, treatment with insecticides proved to be costly and unsusta
Publicado em: 2008
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11. Estudo da relação do parasitóide Nasonia vitripennis (Walker, 1836) (Hymenoptera: Pteromalidae) utilizando como hospedeiro Chrysomya megacephala (Fabricius, 1794) (Diptera: Calliphoridae), em laboratório / Study of the relationship of parasitoid Nasonia vitripennis (Walker, 1836) (Hymenoptera: Pteromalidae) in host Chrysomya megacephala (Fabricius, 1794) (Diptera: Calliphoridae), in laboratory
The object of this study was evaluate biologycal aspects of Nasonia vitripennis at different density levels of the host Chrysomya megacephala on parasitoid N. vitripennis isolated and grouped; evaluate the longevity of N. vitripennis with and without offering of pupas to the parasitóides adults; and verify the influence of the sawdust as substratum of pupas
Publicado em: 2007
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12. Development and rearing techniques of Palmistichus elaeisis (Hymenoptera: Eulophidae) in natural and alternative hosts / Desenvolvimento e técnicas de criação de Palmistichus elaeisis (Hymenoptera: Eulophidae) em hospedeiros natural e alternativo
This research was developed in the Laboratory of Biological Control of Insects of the Department of Animal Biology at the Federal University of Viçosa (UFV) in Viçosa, Minas Gerais State, Brazil. The objective was to evaluate the viability of pupae of Bombyx mori L., 1758 (Lepidoptera: Bombycidae) as an alternative host for Palmistichus elaeisis Delvare &L
Publicado em: 2006